Normal Distribution & Empirical Rule

What shape is a normal distribution curve? (a)  

• Half curve
• Round curve
• Bell curve
• Square curve

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CCSS.HSS.ID.A.3

According to the empirical rule, what percentage of data falls within 1 standard deviation?  (a)  

• 25%
• 68%
• 95%
• 99.7%

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CCSS.HSS.ID.A.4

According to the empirical rule, how much of the data falls within 3 standard deviations?  (a)  

• 25%
• 68%
• 95%
• 99.7%

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CCSS.HSS.ID.A.4

When labeling the axis for a normal distribution curve, the notation  $\sigma$  is used to represent standard deviation. What is this Greek letter  $\sigma$  called?

Lowercase Sigma

Mathematical Equivalence

ON

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CCSS.HSS.ID.A.4

CCSS.HSS.ID.A.2

This data is normally distributed. What percent of the data is in the shaded region? (a)  

• 68%
• 95%
• 99.8%
• 50%

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CCSS.HSS.ID.A.4

This data is normally distributed. What percent of the data is in the shaded regions? (a)  

• 5%
• 95%
• 2.5%
• 50%

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CCSS.HSS.ID.A.4

According to the empirical rule, what percentage of data falls within 1 standard deviation?  (a)  

• 25%
• 68%
• 95%
• 99.7%

Tags

CCSS.HSS.ID.A.4

According to the empirical rule, how much of the data falls within 3 standard deviations?  (a)  

• 25%
• 68%
• 95%
• 99.7%

Tags

CCSS.HSS.ID.A.4

How is the graph distributed? (a)  

• Normally
• Skewed to the Left
• Skewed to the Right
• Uniform

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CCSS.HSS.ID.A.3

Which is a normal distribution graph?

• 
• 
• 
• 

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CCSS.HSS.ID.A.4

CCSS.HSS.ID.A.3

CCSS.HSS.MD.A.1